Atik, A.F., Intan, I.N.A. and Eryantika, E.C.D. 2021. The The Effectiveness of Used Video And Poster On Increasing Public Knowledge About Covid-19 Prevention Health Protocol. Jurnal Ilmiah Kedokteran dan Kesehatan. 1, 1 (Dec. 2021), 42-52. DOI:https://doi.org/10.55606/klinik.v1i1.144.